Mercurial > repos > IBBoard.WarFoundry.API

annotate API/Factories/Requirement/UnitRequiresNUnitsForMUnitsRequirementFactory.cs @ 442:5ac76de8ce62

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Re #350: Add requirement to allow N of unit for specific other units * Add code for parsing min numbers as well as allowed numbers
author IBBoard <dev@ibboard.co.uk>
date Sat, 03 Dec 2011 20:10:13 +0000
parents d2331ee59d74
children 4fbb7f205f7e
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1 // This file (UnitRequiresNUnitsForMUnitsRequirementFactory.cs) is a part of the IBBoard.WarFoundry.API project and is copyright 2011 IBBoard
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2 //
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3 // The file and the library/program it is in are licensed and distributed, without warranty, under the GNU Affero GPL license, either version 3 of the License or (at your option) any later version. Please see COPYING for more information and the full license.
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4 using System;
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5 using IBBoard.WarFoundry.API.Objects;
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6 using IBBoard.WarFoundry.API.Objects.Requirement;
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7
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8 namespace IBBoard.WarFoundry.API.Factories.Requirement
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9 {
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10 public class UnitRequiresNUnitsForMUnitsRequirementFactory : IRequirementFactory
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11 {
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12 public UnitRequiresNUnitsForMUnitsRequirementFactory()
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13 {
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14 //Do nothing special
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15 }
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16
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17 public string AppliesToID
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18 {
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19 get
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20 {
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21 return RequiresNUnitsForMUnitsRequirement.REQUIREMENT_ID;
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22 }
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23 }
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24
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25 public IRequirement CreateRequirement<SOURCE_FILE_TYPE, ENTRY_TYPE>(UnitType type, string data, IRaceFactory<SOURCE_FILE_TYPE, ENTRY_TYPE> raceFactory)
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26 {
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27 RequiresNUnitsForMUnitsRequirement req = new RequiresNUnitsForMUnitsRequirement(type);
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28 Race race = type.Race;
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29 AddRequirements(req, race, data, raceFactory);
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30 return req;
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31 }
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32
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33 private void AddRequirements<SOURCE_FILE_TYPE, ENTRY_TYPE>(RequiresNUnitsForMUnitsRequirement req, Race race, string data, IRaceFactory<SOURCE_FILE_TYPE, ENTRY_TYPE> raceFactory)
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34 {
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35 foreach (string requirement in data.Split('|'))
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36 {
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37 string[] requirementParts = requirement.Split(':');
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38 string unitID = requirementParts[0];
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39 UnitType unitType = raceFactory.GetUnitType(unitID, race);
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40
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41 if (unitType == null)
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42 {
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43 throw new InvalidRequirementException(String.Format("Invalid unit type '{0}' for 'Requires N units for M units' requirement", unitID));
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44 }
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45
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46 if (requirementParts.Length == 2)
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47 {
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48 string[] amounts = requirementParts[1].Split(';');
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49
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50 int minCount;
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51 int allowedAmounts;
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52
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53 if (amounts.Length == 1)
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54 {
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55 minCount = 1;
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56 allowedAmounts = ParseAllowedAmount(amounts[0], unitID);
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57 }
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58 else
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59 {
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60 minCount = ParseMinCount(amounts[0], unitID);
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61 allowedAmounts = ParseAllowedAmount(amounts[1], unitID);
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62 }
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63
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64 req.AddUnitTypeRequirement(unitType, minCount, allowedAmounts);
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65 }
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66 else
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67 {
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68 req.AddUnitTypeRequirement(unitType);
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69 }
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70 }
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71 }
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72
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73 private int ParseMinCount(string minCount, string unitID)
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74 {
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75 try
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76 {
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77 return Int32.Parse(minCount);
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78 }
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79 catch (FormatException)
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80 {
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81 throw new InvalidRequirementException(String.Format("Invalid minimum amount '{0}' for unit type '{1}' for 'Requires N units for M units' requirement", minCount, unitID));
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82 }
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83 }
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84
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85 private int ParseAllowedAmount(string allowedAmount, string unitID)
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86 {
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87 try
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88 {
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89 return Int32.Parse(allowedAmount);
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90 }
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91 catch (FormatException)
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92 {
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93 throw new InvalidRequirementException(String.Format("Invalid allowed amount '{0}' for unit type '{1}' for 'Requires N units for M units' requirement", allowedAmount, unitID));
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94 }
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95 }
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96 }
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97 }
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98